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Finding the Fourth Proportional to 370,941.40, 556,455.68 and 118,133.40

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Solution

The fourth proportional to 370,941.40, 556,455.68 and 118,133.40 is: 177,213.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,941.40 : 556,455.68 = 118,133.40 : x
  2. Step 2: Convert to fraction form
    370,941.40/556,455.68 = 118,133.40/x
  3. Step 3: Cross multiply
    370,941.40x = 556,455.68 × 118,133.40
  4. Step 4: Simplify right side
    370,941.40x = 65,736,001,427.71
  5. Step 5: Solve for x
    x = 65,736,001,427.71/370,941.40
  6. Step 6: Final answer
    x = 177,213.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.